supply of oil seals solid split type (viton) to suit roller journal assembly for hp 803 bowl mills supply of oil seals solid split type viton to suit roller journal assembly for hp 803 bowl mills , oil seals solid split type (viton) to suit roller journal assembly for hp 803 bowl mills. (as per drawing) material: viton rubber b 50 dupont. make: ss rubber / equivalent. i)heel : hard dense, rugged special asbestos rubber composition shore hardness 100 and to withstand temperature up to 260°c ii)lip: shore a hardness 80±5 to withstand temp. up to 260°c iii)garter spring with hooked ends made of stainlesssteel. iv)viton material properties. density gm / cm3- 1.8 to 1.9 tensile strengthkg / cm2 (min) - 130 min. elongations % age of break point -170 min. colour: black / brown.